docker-build-additions

buildscript {
    ...
    dependencies {
        ...
        classpath('se.transmode.gradle:gradle-docker:1.2')
    }
}

group = {your-docker-hub-id}

...
apply plugin: 'docker'

task buildDocker(type: Docker, dependsOn: build) {
  push = true
  applicationName = jar.baseName
  dockerfile = file('src/main/docker/Dockerfile')
  doFirst {
    copy {
      from jar
      into stageDir
    }
  }
}